Drivers of the composition of active rhizosphere bacterial communities in temperate grasslands.

ABSTRACT: The active bacterial rhizobiomes and root exudate profiles of phytometers of six plant species growing in central European temperate grassland communities were investigated in three regions located up to 700 km apart, across diverse edaphic conditions and along a strong land use gradient. The recruitment process from bulk soil communities was identified as the major direct driver of the composition of active rhizosphere bacterial communities. Unexpectedly, the effect of soil properties, particularly soil texture, water content, and soil type, strongly dominated over plant properties and the composition of polar root exudates of the primary metabolism. While plant species-specific selection of bacteria was minor, the RNA-based composition of active rhizosphere bacteria substantially differe

SUBMITTER: Vieira S 

PROVIDER: S-EPMC6976627 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature